Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Compressor train question

Compressor train question

Compressor train question

I have a schematic for a compressor train (LP-MP-HP) which are gas turbine driven. On the outlet of the LP system there is a check valve and after this check valve there is the symbol for a piston valve. My question is this piston valve used as an isolation valve ?

RE: Compressor train question

Would be better if you'd post a sketch, but I'd guess you mean an automated valve with a pneumatic ( or hydraulic) operated (piston type) remote operated actuator, more commonly called a remote operated shutdown valve ( abbreviated SDV or ESV or ROV or ABV etc). This is used to automatically isolate the LP stage compressor during a normal or emergency shutdown sequence of the LP compressor. There are many types of these remote operable actuators.

RE: Compressor train question

Thank you for the reply. Do you know of a common set of procedures for start up/shutdown /esd that I can consult for background research?


RE: Compressor train question

Operating procedures would be specific to the installation, though I would agree there are some parts of this procedure that would be similar for most compression trains. I dont have these procedures, but it is possible to develop these with a set of process drawings, the operating procedures for the GT, the startup / shutdown sequence diagrams for the GT( which the GT vendor would have handed over), and the cause and effect diagrams relevant to the compression train. You should also have some of the installation's process engineering design reports handy( most importantly the process control narratives). Ask your plant manager to provide you with these in case you cannot get these yourself. Many of these reports may be missing in older plants. Operations staff feedback during the development of these procedures is critical.

RE: Compressor train question

Thanks for this. Do you happen to have a link to an example of a gas turbine driven compressor?


RE: Compressor train question

No. If you are struggling to find a typical template to work off, talk to some of these companies that develop operating procedures. The bulk of the procedure is really about getting the auxiliary systems powered and running : fuel gas, aux lube oil, shaft sealing utilities, air or sea water coolers, lube oil or air or electric power to turbine starter motor, pressurisation of LO rundown tanks etc. The startup for the turbine and compressor proper would in most cases be completely be on auto sequence.

RE: Compressor train question

Thanks for this. I will do some more research. Could you recommend any good books on mechanical and control aspects of compressors?


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


eBook - Rethink Your PLM
A lot has changed since the 90s. You don't surf the Web using dial-up anymore, so why are you still using a legacy PLM solution that's blocking your ability to innovate? To develop and launch products today, you need a flexible, cloud-based PLM, not a solution that's stuck in the past. Download Now
White Paper - Using Virtualization for IVI and AUTOSAR Consolidation on an ECU
Current approaches used to tackle the complexities of a vehicle’s electrical and electronics (E/E) architecture are both cost prohibitive and lacking in performance. Utilizing virtualization in automotive software architecture provides a better approach. This can be achieved by encapsulating different heterogeneous automotive platforms inside virtual machines running on the same hardware. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close